<html>
<style>
.yellowbubble{
	fill:yellow;
	stroke:red;
}
</style>
<body>

<svg viewBox="0 0 800 600">
<rect x="0" y="0" width="800" height="600" rx="100" ry="100" class="yellowbubble" />
<text x="40" y="130" style="fill:black;stroke:none">Abracadabra</text>
</svg>

</body>
</html>
